From patchwork Tue Jun 27 19:58:38 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Anholt X-Patchwork-Id: 9813055 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 761AF60210 for ; Tue, 27 Jun 2017 19:58:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6B0D820007 for ; Tue, 27 Jun 2017 19:58:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5FF0028619; Tue, 27 Jun 2017 19:58:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0B1D320007 for ; Tue, 27 Jun 2017 19:58:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AA1186E0BA; Tue, 27 Jun 2017 19:58:49 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from anholt.net (anholt.net [50.246.234.109]) by gabe.freedesktop.org (Postfix) with ESMTP id 760C96E3EA for ; Tue, 27 Jun 2017 19:58:47 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by anholt.net (Postfix) with ESMTP id 4DF8E10A1DD9; Tue, 27 Jun 2017 12:58:47 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at anholt.net Received: from anholt.net ([127.0.0.1]) by localhost (kingsolver.anholt.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id bWYfyboGEb9a; Tue, 27 Jun 2017 12:58:45 -0700 (PDT) Received: from eliezer.anholt.net (localhost [127.0.0.1]) by anholt.net (Postfix) with ESMTP id 754D210A1DDC; Tue, 27 Jun 2017 12:58:42 -0700 (PDT) Received: by eliezer.anholt.net (Postfix, from userid 1000) id 9EB2A2E07C5; Tue, 27 Jun 2017 12:58:39 -0700 (PDT) From: Eric Anholt To: dri-devel@lists.freedesktop.org, Archit Taneja , Andrzej Hajda , Laurent Pinchart , Thierry Reding Subject: [PATCH 7/8] dt-bindings: Document the Raspberry Pi Touchscreen nodes. Date: Tue, 27 Jun 2017 12:58:38 -0700 Message-Id: <20170627195839.3338-8-eric@anholt.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170627195839.3338-1-eric@anholt.net> References: <20170627195839.3338-1-eric@anholt.net> Cc: linux-kernel@vger.kernel.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This doesn't yet cover input, but the driver does get the display working when the firmware is disabled from talking to our I2C lines. Signed-off-by: Eric Anholt Acked-by: Rob Herring --- .../panel/raspberrypi,7inch-touchscreen.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/raspberrypi,7inch-touchscreen.txt diff --git a/Documentation/devicetree/bindings/display/panel/raspberrypi,7inch-touchscreen.txt b/Documentation/devicetree/bindings/display/panel/raspberrypi,7inch-touchscreen.txt new file mode 100644 index 000000000000..e9e19c059260 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/raspberrypi,7inch-touchscreen.txt @@ -0,0 +1,49 @@ +This binding covers the official 7" (800x480) Raspberry Pi touchscreen +panel. + +This DSI panel contains: + +- TC358762 DSI->DPI bridge +- Atmel microcontroller on I2C for power sequencing the DSI bridge and + controlling backlight +- Touchscreen controller on I2C for touch input + +and this binding covers the DSI display parts but not its touch input. + +Required properties: +- compatible: Must be "raspberrypi,7inch-touchscreen-panel" +- reg: Must be "45" +- port: See panel-common.txt + +Example: + +dsi1: dsi@7e700000 { + #address-cells = <1>; + #size-cells = <0>; + <...> + + port { + dsi_out_port: endpoint { + remote-endpoint = <&panel_dsi_port>; + }; + }; +}; + +i2c_dsi: i2c { + compatible = "i2c-gpio"; + #address-cells = <1>; + #size-cells = <0>; + gpios = <&gpio 28 0 + &gpio 29 0>; + + lcd@45 { + compatible = "raspberrypi,7inch-touchscreen-panel"; + reg = <0x45>; + + port { + panel_dsi_port: endpoint { + remote-endpoint = <&dsi_out_port>; + }; + }; + }; +};